Strykjärn
type: MusicGroup
popularity: 8
followers: 1181
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x323a1b2a9d86c3afb35ee9af7bdc130de1b0463cb7303a6d119250b19e5f02bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5aeb4d7b-e586-4c8f-b7a9-523e8eef8c2d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5aeb4d7b-e586-4c8f-b7a9-523e8eef8c2d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5aeb4d7b-e586-4c8f-b7a9-523e8eef8c2d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x323a1b2a9d86c3afb35ee9af7bdc130de1b0463cb7303a6d119250b19e5f02bc","name":"Strykjärn","registered_at":"2026-06-16T21:16:15Z","symbol":"NIM1178010","token_address":"0x564151e182c9cc178204e883a4d4ad45e7d8d66b","type":"artist","uuid":"5aeb4d7b-e586-4c8f-b7a9-523e8eef8c2d"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323a1b2a9d86c3afb35ee9af7bdc130de1b0463cb7303a6d119250b19e5f02bc. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5aeb4d7b-e586-4c8f-b7a9-523e8eef8c2d.json and https://artists.proofprofile.net/proofs/artist/5aeb4d7b-e586-4c8f-b7a9-523e8eef8c2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x323a1b2a9d86c3afb35ee9af7bdc130de1b0463cb7303a6d119250b19e5f02bc","name":"Strykjärn","registered_at":"2026-06-16T21:16:15Z","symbol":"NIM1178010","token_address":"0x564151e182c9cc178204e883a4d4ad45e7d8d66b","type":"artist","uuid":"5aeb4d7b-e586-4c8f-b7a9-523e8eef8c2d"}
album: Vi lever på hat
  type: MusicAlbum
  date published: 2009-05-22
  track: Vi lever på hat
    type: MusicRecording
    duration: PT3M35S
    duration ms: 215190
    explicit: true
    by artist: Strykjärn
    in album: Vi lever på hat
      type: MusicAlbum
      date published: 2009-05-22
    isrc code: TCABW1480544
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:56:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x627524d2d2c94b23b2aa113c502f3cb8fbacff65f0c3b59e7741a5cfb29aab4d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABW1480544
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627524d2d2c94b23b2aa113c502f3cb8fbacff65f0c3b59e7741a5cfb29aab4d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABW1480544.
      date published: 2026-07-04T11:19:20Z
    audio: Vi lever på hat
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.016
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.598
      additional property: Energy
        type: PropertyValue
        value: 0.988
      additional property: Speechiness
        type: PropertyValue
        value: 0.088
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.013
      additional property: Liveness
        type: PropertyValue
        value: 0.191
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.068
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.995
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Vi Lever På Hat
  type: MusicAlbum
  date published: 2009-05-22
album: Ingen Morgondag Är Värd Sitt Namn
  type: MusicAlbum
  date published: 2010-11-19
album: Ingen Morgondag Är Värd Sitt Namn
  type: MusicAlbum
  date published: 2011-03-22
album: Vi Lever På Hat
  type: MusicAlbum
  date published: 2012-05-30
album: Tidvattnets Likgiltighet
  type: MusicAlbum
  date published: 2014-10-28
album: Tidvattnets likgiltighet
  type: MusicAlbum
  date published: 2014-10-28
album: Ingen morgondag är värd sitt namn
  type: MusicAlbum
  date published: 2014-10-28
album: Likt lede fi
  type: MusicAlbum
  date published: 2016-08-09
album: Likt Lede Fi
  type: MusicAlbum
  date published: 2016-08-09
album: Köbildning vid giljotinen
  type: MusicAlbum
  date published: 2018-09-07
album: Köbildning vid giljotinen
  type: MusicAlbum
  date published: 2018-09-07
album: En jävla massa lidande
  type: MusicAlbum
  date published: 2019-11-22
album: När asen blivit gödsel
  type: MusicAlbum
  date published: 2020-10-02